Egg-tester



(No Model.) i

i B. B.- GURLEY.

EGGTESTER.

No. 858,444. Patented Mar. 1, 1887.

UNITED STATES PATENT OFFICE.

BENJAMIN B. GURLEY, OF MINNEAPOLIS, ASSIGNOR OF ONE-HALF TO ARTHUR G.LEWIS, OF ST. PAUL, MINNESOTA.

EGG-TESTER.

SPECIFICATION forming part of Letters Patent No. 358.444. dated March 1,1887.

Application filed August 3l, 1886.

To all whom it may concern.- Be it known that I, BENJAMIN B. GURLEY, acitizen of the United' States, residing at Minneapolis, in the county ofHennepin and State of Minnesota, haveI invented certain new and usefulImprovementsin Egg-Testers; and I do hereby declare the following to bea full, clear, and exact description of the invention, such as willenable others skilled in the art to which it appertains to make and usethe same.

My invention relates to improvements in devices for testing or candlingeggs; and the object of my invention is to provide an apparatus thatshall be simple in its construction, which may be easily andexpeditiously operated, and by which any person can perform the Work oftesting eggs.A

My invention consists in the construction and combination of devices,hereinafter described, and particularly pointed out in the claims.

In the accompanying drawings, Figure 1 is a side elevation of myimproved egg-tester. Fig. 2 is a vertical section. Fig. 3 is a detail.Fig. 4 is a view of the ratchet and pawl.

In the drawings, 1 represents the base of thel machine. It is preferablya board or frame of suitable size to give the machine the desiredstability. To this base is secured a vertical standard, 2, whichsupports the operating parts of the apparatus. At its upper end isformed the bearing or collar 8, upon which is seated, to revolvefreely,the table or disk 3. There is a washer, 51, on the standard,above the table, and a pin, 53, through the standard, above the washer,holds the table in place. On the under side of the table is the ratchet10.

9 is a coiled-spring pawl, 'of the shape substantially shown in Figs. 3and 4 when in its normal position. One end of the spring is secured tothe standard 2, preferably by being passed through the standard. The,other end is secured to the strap l5, which passes over the pin 13, andat its opposite end is secured to the treadle 16. The bend `in thespring 9 is in position to take into one of the notches in the ratchet.As the treadle is depressed the spring is coiled more tightly, or woundup, and when the treadle is released the 5o spring unwinds or regainsits normal shape.

may be used to hold it in place.

serin Nn'. 212,295. fue model.)

As it does this, the part that lies iu the notch of the ratchet slidesover the inclined side of the notch, springs upward into the next notchof the ratchet, and is ready for the next movement of the treadle. Bythis means the table is rotated by a step-by-step movement on thestandard 2.

It will be seen that the ratchetpawl has a double action. It acts in ahorizontal plane and it also acts vertically. I am not aware that aspring-pawl of this kind has ever before been uscd.

On the table 3 is secured a metal support, 4. Thissupport is in theshape of a frustum of a cone,and is preferably made of thin metal. Itmay be secured to the table 3 by nails or screws, or in any othersuitable Way. On a line a little below its center it has a series ofholes, 21, and just below these holes is a ledge,` 5. The inner surfaceof the ledge and the outer surface of the support 4, to aline ashortdistance above the holes 21,are preferably covered with flannel, asindicated by the dotted line in Fig. 1, so that there will be lessliability of breaking the eggs placed thereon.

6 is a cone-shaped attachment, preferably made of thin metal. It has asocket,18,upou one side, and this is slipped over the upper reduced end,17, of the standard 2. In the lower end of the cone is secured a smallmirror, 19, and in the side of the cone, just above the mirror, is ahole, 20. This hole may register with any one of the holes 21 in thesupport 4.

The'apparatus may be usedv to test eggs by sun-light; but as this cannotalways be had, I affix a lamp attachment, as shown in Fig. 1.

31 isa horizontal rod on standard 2. To the end of the rod isv securedthe T-coupling 33, through which slides the vertical rod 36, carryingthe small platform 37 at its upper end. By a set-screw, 35, the rod 36may be secured at the desired height. A lamp, 40, is supported on theplatform 37, and springs 39 A shield,41, inclosing a reflector, 45, isused to throw the light upon the egg being tested. The shield issupported from the cone 6 by a metal rod, 43; or it may be supported bythe lamp itself, or by any other suitable means.

IOO

In using this apparatus a person takesa scat in front oftheapparatus,with one foot on the treadle 16. The eggs are placed on theledge 5 in front of the holes 2l. As the table is rotated each egg isbrought in front of the opening' 20 in the cone 6. At this point it issub- `jected to the light from the reiieetor, and the person using thedevice,looking into the cone 6, can, by means ofthe mirror 19, at oncedetermine whether the egg is good or not. The eggs can be placed on thesupport with the left hand and removed from the other side with theright, and the Work can therefore be very rapidly done. I place a numberof han* dies, 57, on the edge of the table, and the table can be rotatedby these, instead of by the treadle-andratehet mechanism.

In connection with this apparatus l propose to use a counting orregistering device that Will register the number of eggs that have beentested.

I claim as my invention 1. The combination, with a table mounted on astandard and free to rotate thereon and carrying an eggsupport having aseries of openings, of a conc mounted on said standard above therotating table and arranged Within the egg-support, and having a mirrorin its lower end and an opening in its side in a position to registerwith the holes of tlieeggsupport, all substantially as described.

2. The combination, with the table carrying the perforated eggsupport,of the cone arranged Within the egg-support, having a inirror in itslower end and having an openingin its side in a position to registerwiththe openings of the egg-support, and the paWl-andratchet and treadlemechanism for rotating the table, substantially as described.

3. The combination, with the table carrying the perforated egg-support,of the conc arranged Within thc egg support, having a mirror in itslower end and having an openingin its side in a position to registerWith the openings ofthe eggsupport, and a lamp arranged to throw itslight on the mirror, all substantially as described.

4. The combination, with the table mounted on the standard and free torotate thereon and carrying the frusto-conical egg-support having aseries of openings, and having a ledge below the openings7 of the conearranged within the egg-support and having a mirror inits lower end andan opening in its side opposite the mirror and in a position to registerwith the openings in the egg support, all substan tially as described.

5. lThe table 3, mounted on the standard 2 and carrying the egg-support4, having the ledge 5 and openings 21, the inner surface of the ledgeand a portion of the egg-support being covered with flannel, incombination with the cone 6, secured to the upper end of the standard,and having the mirror 19 and opening 20, all substantially as described.

6. The combination, with the standard, table, egg-support, and cone,arranged as described, of the adjustable lamp-support, the lamp andtheshield having a reflector and having an opening in its side,substantially as described. Y

7. The combination, with the standard, tahlc, egg-support, and cone,arranged as described, of the rod 3l, coupling 33, screw 35, rod 36,platform 37, springs 39, lamp 40, and shield 4l, having reflector 45 andopening 47, all substantially as described.

In testimony whereof I allix my signature in presence of two Witnesses.

BENJAMIN l. GUHLEY.

Witnesses:

Ainsa C. PAUL, ELnoTUs A. Plni'r'r.

